Phoebe Dynevor dives into shark-infested waters with Netflix's 'Thrash'

Phoebe Dynevor is no stranger to commanding attention, but in Netflix's new creature feature 'Thrash,' she's doing it while treading water-often literally. The film casts her as Dr. Ellie Marsh, a marine biologist who finds herself stranded on a sinking research platform with a massive great white circling below. What follows is a tightly wound survival story that doesn't pretend to be anything new, but doesn't need to. It's a shark movie, after all, and sometimes all you need is a good chomp.

The plot, as straightforward as it is tense, kicks off when a storm disables communication and escape routes, leaving Ellie and a small crew-including Djimon Hounsou as a grizzled oceanographer-facing dwindling oxygen, rising water, and a predator that's not interested in sharing space. The shark itself is a mix of practical effects and slick CGI, with attack scenes drenched in that signature red-tinged water that feels like a nod to Spielberg's playbook. Critics from Variety note the film borrows liberally from 'Jaws,' right down to the ominous score cues and the slow reveal of the beast, but it's done with enough craft to feel like homage rather than imitation.

Still, not everyone's convinced. The New York Post's review calls the film "mostly toothless," pointing to two parallel storylines involving endangered children that veer into melodrama. These subplots, one on the platform and one back on shore, add emotional stakes but feel formulaic, leaning on well-worn disaster-movie tropes. The tension is real, but the emotional beats sometimes land with a splash rather than a bite.

Where 'Thrash' stands out is in Dynevor's performance. She brings a quiet intensity to Ellie, balancing scientific rigor with raw fear in a way that keeps the audience anchored. Unlike some genre leads who feel like bystanders to the chaos, Dynevor's character drives the action, making smart, desperate choices under pressure. Her presence gives the film a center that elevates it beyond pure schlock.

The final act leans hard into spectacle, with a climax that pits human ingenuity against nature's brutality in a way that's both over-the-top and satisfying. Without spoiling too much, the shark gets her due-and it's as messy as you'd hope. The film doesn't try to say much about climate change or human arrogance, which some may see as a missed opportunity, but others will appreciate as a refusal to overcomplicate a simple premise.

For viewers looking for something fresh and thematically rich, 'Thrash' might not be the deep cut they're after. But for those who just want a well-made, pulse-pounding shark thriller on a Saturday night, it fits the bill. It knows what it is, and it does it well.

Streaming now on Netflix, 'Thrash' won't replace 'Jaws' in the cultural pantheon, but it earns its place on the shelf of solid creature features. Grab the popcorn, keep your limbs inside the boat, and enjoy the ride.